SI82391BB-AS1R

Isolators - Gate Drivers Overview

The SI82391BB-AS1R is an automotive-grade, dual-channel isolated gate driver from Skyworks Solutions. It features a 2500 Vrms isolation rating and operates within a temperature range of -40°C to +125°C. The device provides a peak output current of 4 A with a maximum propagation delay of 40 ns. It utilizes an 8 V UVLO threshold and is housed in a 16-pin SOIC-Narrow package. Power dissipation is rated at 2 W, and it meets AEC-Q100 qualification standards for reliability.

Isolators - Gate Drivers Feature Summary

• Provides galvanic isolation between control circuitry and power switches
• Designed for high electromagnetic immunity applications
• Automotive qualified for harsh operating environments

Isolators - Gate Drivers Applications

• Automotive power electronics systems
• Motor drive control circuits
• Inverter bridge gate driving

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS1R corresponds to the Tape & Reel packaging format as indicated by distributor data. Confirm that the 2500 Vrms isolation rating aligns with your system safety requirements. Ensure the SOIC-Narrow-16 footprint matches your PCB layout constraints. Cross-reference the AEC-Q100 qualification status if automotive compliance is mandatory for your production line.

Isolators - Gate Drivers Selection Notes

Select this component when a dual-channel isolated driver with automotive certification is required. The 4 A output capability suits medium-power MOSFET or IGBT switching. Consider the 40 ns propagation delay for timing-sensitive applications. The narrow SOIC package offers space efficiency compared to wider variants like the BD series.

Isolators - Gate Drivers Part Context

This part belongs to the Si8239x family of isolated gate drivers. It shares architectural similarities with other members but differs in package type and insulation voltage ratings. The BB suffix typically denotes the Narrow SOIC package variant, distinguishing it from Wide SOIC options within the same functional family.

Isolators - Gate Drivers Replacement Considerations

The SI82391BD-AS1R is a related variant offering similar functionality but in a Wide SOIC-16 package. Verify pinout compatibility and thermal performance differences before substitution. Check if the specific insulation voltage requirements match the 2500 Vrms specification.